Home / 18,983.13-28,474.70-5,132.13

Finding the Fourth Proportional to 18,983.13, 28,474.70 and 5,132.13

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Solution

The fourth proportional to 18,983.13, 28,474.70 and 5,132.13 is: 7,698.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,983.13 : 28,474.70 = 5,132.13 : x
  2. Step 2: Convert to fraction form
    18,983.13/28,474.70 = 5,132.13/x
  3. Step 3: Cross multiply
    18,983.13x = 28,474.70 × 5,132.13
  4. Step 4: Simplify right side
    18,983.13x = 146,135,862.11
  5. Step 5: Solve for x
    x = 146,135,862.11/18,983.13
  6. Step 6: Final answer
    x = 7,698.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.